//
//  UIView+XXExtension.m
//  SHWheel
//
//  Created by YYKJ on 2020/10/16.
//  Copyright © 2020 YYKJ. All rights reserved.
//

#import "UIView+XXExtension.h"
#import "SHCommonDefines.h"

@implementation UIView (XXExtension)
@end

@implementation UIView (XXViewController)

- (UIViewController *)xx_viewController {
    UIResponder *responder = self;
    while ((responder = [responder nextResponder]))
        if ([responder isKindOfClass: [UIViewController class]]) {
            return (UIViewController *)responder;
        }
    return nil;
}

- (BOOL)xx_visible {
    if (self.hidden || self.alpha <= 0.01) {
        return NO;
    }
    if (self.window) {
        return YES;
    }
    if ([self isKindOfClass:UIWindow.class]) {
        if (@available(iOS 13.0, *)) {
            return !!((UIWindow *)self).windowScene;
        } else {
            return YES;
        }
    }
    
    return NO;
}

@end

@implementation UIView (XXFrame)

- (CGFloat)minX {
    return self.frame.origin.x;
}

- (void)setMinX:(CGFloat)minX {
    self.frame = ({
        CGRect frame = self.frame;
        frame.origin.x = minX;
        frame;
    });
}

- (CGFloat)midX {
    return self.center.x;
}

- (void)setMidX:(CGFloat)midX {
    self.center = CGPointMake(midX, self.center.y);
}

- (CGFloat)maxX {
    return self.frame.origin.x + self.frame.size.width;
}

- (void)setMaxX:(CGFloat)maxX {
    self.frame = ({
        CGRect frame = self.frame;
        frame.origin.x = maxX - frame.size.width;
        frame;
    });
}

- (CGFloat)minY {
    return self.frame.origin.y;
}

- (void)setMinY:(CGFloat)minY {
    self.frame = ({
        CGRect frame = self.frame;
        frame.origin.y = minY;
        frame;
    });
}

- (CGFloat)midY {
    return self.center.y;
}

- (void)setMidY:(CGFloat)midY {
    self.center = CGPointMake(self.center.x, midY);
}

- (CGFloat)maxY {
    return self.frame.origin.y + self.frame.size.height;
}

- (void)setMaxY:(CGFloat)maxY {
    self.frame = ({
        CGRect frame = self.frame;
        frame.origin.y = maxY - frame.size.height;
        frame;
    });
}

- (CGFloat)height {
    return self.frame.size.height;
}

- (void)setHeight:(CGFloat)height {
    self.frame = ({
        CGRect frame = self.frame;
        frame.size.height = height;
        frame;
    });
}

- (CGFloat)width {
    return self.frame.size.width;
}

- (void)setWidth:(CGFloat)width {
    self.frame = ({
        CGRect frame = self.frame;
        frame.size.width = width;
        frame;
    });
}

- (UIImage *)snapshotImage {
    UIGraphicsBeginImageContextWithOptions(self.bounds.size, self.opaque, 0);
    [self.layer renderInContext:UIGraphicsGetCurrentContext()];
    UIImage *snap = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    return snap;
}

- (UIImage *)snapshotImageAfterScreenUpdates:(BOOL)afterUpdates {
    if (![self respondsToSelector:@selector(drawViewHierarchyInRect:afterScreenUpdates:)]) {
        return [self snapshotImage];
    }
    UIGraphicsBeginImageContextWithOptions(self.bounds.size, self.opaque, 0);
    [self drawViewHierarchyInRect:self.bounds afterScreenUpdates:afterUpdates];
    UIImage *snap = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    return snap;
}

- (NSData *)snapshotPDF {
    CGRect bounds = self.bounds;
    NSMutableData* data = [NSMutableData data];
    CGDataConsumerRef consumer = CGDataConsumerCreateWithCFData((__bridge CFMutableDataRef)data);
    CGContextRef context = CGPDFContextCreate(consumer, &bounds, NULL);
    CGDataConsumerRelease(consumer);
    if (!context) return nil;
    CGPDFContextBeginPage(context, NULL);
    CGContextTranslateCTM(context, 0, bounds.size.height);
    CGContextScaleCTM(context, 1.0, -1.0);
    [self.layer renderInContext:context];
    CGPDFContextEndPage(context);
    CGPDFContextClose(context);
    CGContextRelease(context);
    return data;
}

- (void)setLayerShadow:(UIColor*)color offset:(CGSize)offset radius:(CGFloat)radius {
    self.layer.shadowColor = color.CGColor;
    self.layer.shadowOffset = offset;
    self.layer.shadowRadius = radius;
    self.layer.shadowOpacity = 1;
    self.layer.shouldRasterize = YES;
    self.layer.rasterizationScale = [UIScreen mainScreen].scale;
}

- (void)removeAllSubviews {
    //[self.subviews makeObjectsPerformSelector:@selector(removeFromSuperview)];
    while (self.subviews.count) {
        [self.subviews.lastObject removeFromSuperview];
    }
}


- (UIViewController *)viewController {
    for (UIView *view = self; view; view = view.superview) {
        UIResponder *nextResponder = [view nextResponder];
        if ([nextResponder isKindOfClass:[UIViewController class]]) {
            return (UIViewController *)nextResponder;
        }
    }
    return nil;
}

- (CGFloat)visibleAlpha {
    if ([self isKindOfClass:[UIWindow class]]) {
        if (self.hidden) return 0;
        return self.alpha;
    }
    if (!self.window) return 0;
    CGFloat alpha = 1;
    UIView *v = self;
    while (v) {
        if (v.hidden) {
            alpha = 0;
            break;
        }
        alpha *= v.alpha;
        v = v.superview;
    }
    return alpha;
}

- (CGPoint)convertPoint:(CGPoint)point toViewOrWindow:(UIView *)view {
    if (!view) {
        if ([self isKindOfClass:[UIWindow class]]) {
            return [((UIWindow *)self) convertPoint:point toWindow:nil];
        } else {
            return [self convertPoint:point toView:nil];
        }
    }
    
    UIWindow *from = [self isKindOfClass:[UIWindow class]] ? (id)self : self.window;
    UIWindow *to = [view isKindOfClass:[UIWindow class]] ? (id)view : view.window;
    if ((!from || !to) || (from == to)) return [self convertPoint:point toView:view];
    point = [self convertPoint:point toView:from];
    point = [to convertPoint:point fromWindow:from];
    point = [view convertPoint:point fromView:to];
    return point;
}

- (CGPoint)convertPoint:(CGPoint)point fromViewOrWindow:(UIView *)view {
    if (!view) {
        if ([self isKindOfClass:[UIWindow class]]) {
            return [((UIWindow *)self) convertPoint:point fromWindow:nil];
        } else {
            return [self convertPoint:point fromView:nil];
        }
    }
    
    UIWindow *from = [view isKindOfClass:[UIWindow class]] ? (id)view : view.window;
    UIWindow *to = [self isKindOfClass:[UIWindow class]] ? (id)self : self.window;
    if ((!from || !to) || (from == to)) return [self convertPoint:point fromView:view];
    point = [from convertPoint:point fromView:view];
    point = [to convertPoint:point fromWindow:from];
    point = [self convertPoint:point fromView:to];
    return point;
}

- (CGRect)convertRect:(CGRect)rect toViewOrWindow:(UIView *)view {
    if (!view) {
        if ([self isKindOfClass:[UIWindow class]]) {
            return [((UIWindow *)self) convertRect:rect toWindow:nil];
        } else {
            return [self convertRect:rect toView:nil];
        }
    }
    
    UIWindow *from = [self isKindOfClass:[UIWindow class]] ? (id)self : self.window;
    UIWindow *to = [view isKindOfClass:[UIWindow class]] ? (id)view : view.window;
    if (!from || !to) return [self convertRect:rect toView:view];
    if (from == to) return [self convertRect:rect toView:view];
    rect = [self convertRect:rect toView:from];
    rect = [to convertRect:rect fromWindow:from];
    rect = [view convertRect:rect fromView:to];
    return rect;
}

- (CGRect)convertRect:(CGRect)rect fromViewOrWindow:(UIView *)view {
    if (!view) {
        if ([self isKindOfClass:[UIWindow class]]) {
            return [((UIWindow *)self) convertRect:rect fromWindow:nil];
        } else {
            return [self convertRect:rect fromView:nil];
        }
    }
    
    UIWindow *from = [view isKindOfClass:[UIWindow class]] ? (id)view : view.window;
    UIWindow *to = [self isKindOfClass:[UIWindow class]] ? (id)self : self.window;
    if ((!from || !to) || (from == to)) return [self convertRect:rect fromView:view];
    rect = [from convertRect:rect fromView:view];
    rect = [to convertRect:rect fromWindow:from];
    rect = [self convertRect:rect fromView:to];
    return rect;
}

- (void)setXx_frameApplyTransform:(CGRect)xx_frameApplyTransform {
    self.frame = CGRectApplyAffineTransformWithAnchorPoint(xx_frameApplyTransform, self.transform, self.layer.anchorPoint);
}

@end

@implementation UIView (XXDraw)

- (void)xx_drawShadowRadius:(CGFloat)radius {
    [self xx_drawShadowRadius:radius shadowColor:UIColor.grayColor];
}

- (void)xx_drawShadowRadius:(CGFloat)radius shadowColor:(UIColor *)shadowColor {
    self.layer.cornerRadius = radius;
    self.layer.shadowColor = shadowColor.CGColor;
    self.layer.shadowOpacity = 1;
    self.layer.shadowOffset = CGSizeMake(0, 0);
    self.layer.shadowRadius = 3.0f;
    UIBezierPath *btnShadowPath = [UIBezierPath bezierPathWithRoundedRect:self.bounds cornerRadius:radius];
    self.layer.shadowPath = btnShadowPath.CGPath;
}

- (void)xx_drawCornerRadius:(CGFloat)radius byRoundingCorners:(UIRectCorner)corners {
    UIBezierPath *path = [UIBezierPath bezierPathWithRoundedRect:self.bounds byRoundingCorners:corners cornerRadii:CGSizeMake(radius, radius)];
    CAShapeLayer *shapLayer = [[CAShapeLayer alloc] init];
    shapLayer.frame = self.bounds;
    shapLayer.path = path.CGPath;
    self.layer.mask = shapLayer;
}

@end

@implementation UIView (XXCreate)

+ (instancetype)xx_create {
    return [[UIView alloc] init];
}

@end
